Slickened or siliconized flame resistant fiber blends

a flame-retardant fiber and blend technology, applied in the field of slickened or siliconized flame-retardant fiber blends, can solve the problems of blends that cannot pass the aforementioned tests, products with much worse flame-retardant properties than non-slickened counterparts, and have not previously imparted the comfort and/or softness desired, etc., to achieve the effect of minimal shrinkage of the char barrier, prolonging the time, and eliminating any residual flam

US20060160454A1Inactive Publication Date: 2006-07-20BEIJING CARINAE MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2006-07-20
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to slickened or siliconized flame resistant fiber blends that are well suited for use in mattresses, boxsprings, upholstered furniture, fiber-filled bed clothing, transportation seating or any end use application where a soft materials are desired for flame resistant (FR) purposes. Some of the fibers in the blend are slickened. The FR fibers incorporated into these blends include both char forming FR fibers and oxygen depleting FR fibers. FR char-forming fibers are those which exhibit little shrinkage when exposed to direct flame and are not spun from polymers manufactured with halogenated monomers. Oxygen depleting FR fibers are spun from polymers manufactured with halogenated monomers.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to slickened or siliconized flame resistant fiber blends that are well suited for use in mattresses, boxsprings, upholstered furniture, fiber-filled bed clothing, office panel fabric, transportation seating or any end use application where a soft materials are desired for flame resistant (FR) purposes. Some forms of this invention include:

[0003] 1) FR thermally bonded or resin bonded highloft comprising fiber blends of FR fibers with non-FR fibers, some fibers of which are slickened.

[0004] 2) FR needlepunched nonwovens comprising fiber blends of FR fibers with non-FR fibers, some fibers of which are slikcened.

[0005] 3) FR loose fill fiber comprising fiber blends of FR fibers with non-FR fibers, some of which are slickened; and

[0006] 4) FR woven and FR knit fabrics produced from yarns comprising fiber blends of FR fibers with non-FR fibers, some fibers of which are slickened.

[0007] The FR f...

Examples

example i

Nonwoven Highloft with Soft Hand

[0099] A vertically lapped highloft as produced with slickened fibers of the present invention, on a Struto vertical lapping machine. The fiber blend consisted of the following: [0100] 10% slickened melamine fiber (Basofil Fiber HF200) [0101] 30% siliconized lyocell (Lenzing's siliconized Tencel M) [0102] 35% unslickened modacrylic fiber that incorporates antimony trioxide for improved flammability (Kaneka's Kanecaron Protex-S) [0103] 25% lowmelt polyester with 110 deg C. meltpoint (Huvis LMF)

[0104] The above fiber blend was double carded and thermally bonded at 285 deg F. to an 80 / 20 bicomponent polyester / standard polyester scrim that weighed 1.25 ounces per square yard.

[0105] The total basis weight of the vertically lapped soft hand nonwoven FR barrier was 363 g / m2 (1.19 ounces per square foot) and had an average thickness of 22 mm in an uncompressed state.

[0106] The above produced vertically lapped highloft FR barrier was very soft to the touch...

example ii

Nonwoven Highloft with Soft Hand

[0119] A vertically lapped highloft as produced with slickened and siliconized fibers of the present invention, on a Struto vertical lapping machine. The fiber blend consisted of the following: [0120] 10% slickened melamine fiber (Basofil Fiber HF200) [0121] 30% siliconized lyocell (Lenzing's siliconized Tencel M) [0122] 35% slickened polyvinylchloride fiber (Rhovyl ZCS) [0123] 25% lowmelt polyester with 110 deg C. meltpoint (Huvis LMF)

[0124] The above fiber blend was double carded and thermally bonded at 265 deg F. to an 80 / 20 bicomponent polyester / standard polyester scrim that weighed 1.25 ounces per square yard.

[0125] The total basis weight of the vertically lapped highloft FR barrier was 339 g / m2 (1.11 ounces per square foot) and had an average thickness of 22 mm in an uncompressed state.

[0126] The above produced vertically lapped highloft FR barrier was very soft to the touch and water resistant. A 36″ long×24″ wide sample was burn tested acc...